English became the official language for business _______ the fact that the population was largely Chinese.
| A．in spite of | B．in case of |
| C．though | D．in addition to |
The shopkeeper did not want to sell for ________ he thought was not enough.
| A．where | B．how | C．what | D．Which |
Danby left word with my secretary ________ he would call again in the afternoon.
| A．who | B．that | C．as | D．which |
Do you have any ideas ________ is actually going on in the classroom?
| A．that | B．what | C．as | D．Which |
Elephants have their own way to tell the shape of an object and ________ it is rough or smooth.
| A．不填 | B．whether | C．how | D．Which |
I was surprised by her words, which made me recognize ________ silly mistakes I had made.
| A．what | B．that | C．how | D．which |